Related Experiment Video
Updated: Jun 20, 2026

Fertility Preservation in Patients with Severe Ovarian Dysfunction
Published on: March 25, 2021
Successful pregnancy in an ovarian agenesis patient after modified natural cycle IVF oocyte donation
Isaac Jacques Kadoch1, Wael Jamal, Simon J Phillips
1University of Montreal, Department of Obstetrics and Gynecology, Saint Luc Hospital (CHUM), 1058 rue Saint-Denis, Montreal, Québec, Canada. ij.kadoch@umontreal.ca
Abstract:
The recovery of a mature oocyte from a modified natural cycle followed by in-vitro fertilization (nIVF) is an attractive alternative to conventional IVF, involving ovarian stimulation, in the treatment of female infertility. Ovarian agenesis is a rare disorder resulting in primary amenorrhoea and infertility in affected females. A couple sought help for infertility due to ovarian agenesis of the female partner and decided to pursue treatment utilizing oocyte donation. Modified natural-cycle egg retrieval was carried out on the donor; one mature oocyte was retrieved and underwent IVF using a sperm sample from the male partner. A good-quality embryo was transferred, A viable pregnancy was confirmed by ultrasound scan and resulted in the delivery of a healthy baby boy at 36 weeks' gestation. This is the second published report of an ongoing clinical pregnancy and subsequent birth resulting from oocyte donation recovered during a modified natural cycle. The use of less invasive assisted reproduction techniques such as nIVF can be used in oocyte donation cycles successfully.
Related Concept Videos
In Vitro Fertilization
The IVF process begins with ovarian stimulation, during which reproductive endocrinologists prescribe hormonal medications to stimulate the ovaries to produce multiple eggs instead of the single...
Ovarian Cycle
Oogenesis
Oogenesis
Each primary oocyte is surrounded by a layer of pre-granulosa cells, forming what is known...
Infertility in Females
Endometriosis, a condition characterized by abnormal growth of endometrial...
Hormonal Control of the Ovarian Cycle
Before puberty, the hypothalamus releases GnRH in a low frequency, low amplitude pulsatile manner. This along with the immature hypothalamic-pituitary-gonadal axis activity, results in low estrogen levels and the absence of a fully functional ovarian cycle. At puberty, GnRH secretion increases in both frequency and...
